Which of the following changes reduced the lead levels in children in developed countries?

a. removal of lead from gasoline and paint
b. removal of lead from vaccination formulas
c. addition of multivitamins to the diet that target and dissolve lead in the bloodstream
d. decision from parents to avoid cars and cooking pots made of lead


A. The government policies that removed lead from paint and gas reduced lead exposure levels to 1%.

Psychology

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Who argued that the mind may observe all phenomena but its own??

a. ?Mill b. ?Comte c. ?Hume d. ?Titchener e. ?Ebbinghaus

Psychology

For an experiment comparing two treatment conditions, there will be ____ score(s) for each participant if a within-subjects design is used and there will be ____ score(s) for each participant if a between-subjects design is used

a. one; one b. one; two c. two; one d. two; two

Psychology

Difficulties with social skills and making conversation may be overcome by all of the following EXCEPT

a. asking open-ended questions. b. practicing in front of a mirror. c. using more animation in conversations. d. waiting for the other person to start the conversation.

Psychology

Olivia is worried about her choice of clothing for the day, and is convinced that her female friends are thinking about her clothes as well. This may represent ____

a. a personal fable c. the imaginary audience b. concrete thinking d. deductive reasoning

Psychology